Slide fastener



G. JOHNSON SLIDE FASTENER Feb. 2o`, 1934.

Filed July l, 1932 Patented Feb. 20, 1934 PATENn OFFICE SLIDE FASTENER Gustav Johnson, West Roxbury, Mass., assignor to United-Carr Fastener Corporation, Cambridge, Mass., a corporation of Massachusetts Application July 1, 1932. Serial No. 620,409

4 Claims.

My invention aims to provide improvements in slide fastener sockets for slidable attachment to straps.

In the drawing which illustrates a preferred embodiment of my invention:-

Figure 1 is a plan view of a portion of an installation showing one use of my improved socket;

Fig. 2 is an enlarged section taken on the line 2-2 of Figure 1, the stud member engaged with the socket being shown in elevation;

Fig. 3 is a top plan of the socket; and

Fig. 4 is an under side plan of the socket.

Referring to the embodiment of my invention illustrated in the drawing, I have shown a separable snap fastener structure which is particularly, though not exclusive, adapted for use on gloves, overshoes and other articles having a strap. The socket member which comprises my invention is carried by a strap and adjustable relative thereto.

The slidable socket illustrated is pressed from a single piece of metal and comprises a plate portion 1 from which is pressed a tubular boss portion 2 having its free end bent inwardly within the boss to provide a rounded neck-engaging wall 3. The boss portion 2 and neck-engaging wall 3 are divided by a number of slits 4, thereby providing a number of yieldable portions 5. These yieldable portion'sf 5 are made as long as possible by forming the boss in such a manner that it first extends upwardly from the plate portion 1 (Fig. 2) and then downwardly so that it is located partly at each side of the plane of the plate portion. Thus I provide sumcient resiliency for the yieldable portions so that they will not become set over a long period of use. The neck-engaging jaw portions 3 present smooth surfaces for contact with the head of a stud when the socket is being engaged therewith and disengaged therefrom.

Instead of dividing the boss equally into yieldable portions, I prefer to divide it in such a manner that one portion 6 is of such dimensions that it will not yield readily and, therefore, remains relatively rigid when the head 7 of the stud 8 is being engaged with or disengaged from the neckengaging wall 3. One Way in which the relatively unyielding portion may be provided is shown in Figs. 3 and 4 by having the slits 4 spaced equal distances apart part way around the boss to form the yieldable portions 5 while two of the slits are spaced a greater distance apart, as illustrated. It will be noted that the (Cl. .Z4- 77) f.,

rigid portion 6 is located near one of the strapA receiving slots 9 so that it will be in a position to take the lateral stresses exerted upon it when in use. l

The socket is attached to a strap 10 in such 80 a manner that the rigid portion 6 is nearest the end of the strap. Therefore, when stresses are exerted laterally upon the strap l0, it being understood that the stud is secured to the other end thereof or to another'suitable structure, the 05 studA will be pulled against the rigid portion 6. This rigid portion 6 is strong enough to withstand ordinary bending stresses which would occur in the normal use of the fastener members. 7

My invention provides a simple one-piece socket which is durable, inexpensive to manufacture and so constructed that the stud-receiving boss may yield but cannot be bent out of shape in ordinary use, especially in a direction toward at least one of the slots 9.

While I have illustrated and described a preferred embodiment of my invention, I do not wish to be limited thereby, because the scope of my invention is best defined by the following claims.

I claim:

1. A slide socket member of a snap fastener having a plate portion, a boss portion pressed out of the material of said plate portion, said boss portion being open to provide a stud-receiving aperture and being divided by a number of slits into a number of relatively yieldable portions and a relatively rigid portion for engagement with a cooperating stud, said plate portion having strap-receiving slots located at opposite sides of said boss portion, and said rigid portion being located adjacent to one of the slots to with- Y stand bending stress exerted toward said slot.

2. A slide socket member of a snap fastener having a plate portion, a boss portion pressed out of the material of said plate portion, said boss portion being open to provide a stud-receiving aperture and being divided by a number of slits into a number of relatively yieldable portions and a relatively rigid portion for engagement with a cooperating stud, said plate portion having strap-receiving slots located at opposite sides of said boss portion, and said rigid portion 105 being located adjacent to one of the slots to withstand bending stress exerted toward said slot, and neck-engaging means at the free end of said boss portion for fastening engagement with the neck of a cooperating fastener stud.

3. A slide socket member of a snap fastener having a plate portion, a boss po-rtion pressed out of the material of said plate portion, said boss portion being open to provide a stud-receiving aperture and being divided by a number of slits into a number of relatively yieldable portions and a` relatively rigid portion for engagement with a cooperating stud, said plate portion having strap-receiving slots located at opposite sides of said boss portion, and said rigid portion being of greater Width than any of the yieldable portions and located adjacent to one of the slots to withstand bending stress exerted toward said slot. f Y

4. A slide socket member of Ya snap fastener having a plate portion, a boss portion pressed out of the material of said plate portion, said boss portion being open to provide a stud-receiving aperture, said boss portion having its free edge turned back with the boss portion to provide a neck-engaging portion for engagement with a cooperating stud, said plate portion having strapreceiving slots located at opposite sides of said boss portion, and-said boss portion being divided by slits arranged to provide a single substantially rigid portion adjacent to one of said strap-receiving slots and to provide yieldable portions throughout the remainder of the circumference of said boss portion to permit enlargement of said stud-receiving aperture.

GUSTAV J OHN SON.

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